Finding the Fourth Proportional to 35,558.10, 49,068.15 and 21,234.10

Step by Step Solution

1. Step 1: Write the proportion equation
   35,558.10 : 49,068.15 = 21,234.10 : x
2. Step 2: Convert to fraction form
   35,558.10/49,068.15 = 21,234.10/x
3. Step 3: Cross multiply
   35,558.10x = 49,068.15 × 21,234.10
4. Step 4: Simplify right side
   35,558.10x = 1,041,918,003.92
5. Step 5: Solve for x
   x = 1,041,918,003.92/35,558.10
6. Step 6: Final answer
   x = 29,301.85